Thermal power plants; Boiler and furnace technology; Combustion and emission control in boilers fired with fossil fuels; Fluidized-bed combustion (FBC) of biomass residues and wastes; Assessment of environmental impacts by thermal power plants and FBC systems
Development and Study of Fluidized-Bed Combustion Systems for Firing Biomass Fuels
Biomass is one of the major primary energy sources in Thailand. Residues and wastes collected on a large scale from agricultural and forest-related activities such as rice, sugar, wood, and palm oil industries can be used (alternatively to fossil fuels) as energy sources for heat and power production in this country. Thus, the development of highly efficient, reliable and environmentally friendly technologies for biomass utilization with the aim of energy production, is a problem of paramount importance for the Thai energy sector. Due to some advantages, fluidized-bed combustion technology seems to be the most suitable for energy conversion of biomass. Conical fluidized-bed combustors of various modifications have been proposed and are being studied. The research objectives include: (1) investigation of fluidization characteristics of the bed material in conical prototypes; (2) study of the effects of fuel and bed material types as well as operating conditions (including air staging) on the combustion efficiency and emission characteristics of the combustor; (3) study of the physical and chemical factors affecting formation and reduction of major pollutants in the combustor; (4) optimization of the combustor design and its operating conditions; (5) assessment of environmental impacts for various biomass fuels; (6) study on co-firing of different biomass fuels and/or co-firing of biomass with coal in a conical fluidized bed.
|Master Theses Supervised|
|2004 :||Vicharn Tanetsakunvatana. Influence of Coal Quality and Operating Conditions on Thermal Efficiency and Environmental Performance of Coal-fired Boilers of a Thermal Power Plant. Joint Graduate School of Energy and Environment.|
|2012 :||Songpol Chakritthakul. Experimental Study on Co-firing of Eucalyptus Bark with High-calorific Biomass Fuels in a Swirling Fluidized-bed Combustor.|
Priatna Suheri. An Experimental Study on Inhibition of Bed Agglomeration during Fluidized-Bed Combustion of High-Alkal Biomass.
Chhaina Se. Co-firing of Cassava Rhizome and Eucalyptus Bark in a Fluidized-Bed Combustor Using a Reburning Method to Reduce NOx Emissions.
|Doctoral Theses Supervised|
|2003 :||Watchara Permchart. Development and Study of a Conical Fluidized-bed Combustor Firing Biomass Fuels. Joint Graduate School of Energy and Environment.|
|2007 :||Watcharee Kaewboonsong. Development and Application of Computational Methods for Minimizing Fuel and Environmental Costs for a Variable-load Power Plant Firing Fuel Oil/Gas.|
|2008 :||Kasama Janvijitsakul. Effects of Operating Conditions on Major and PAH Emissions from a Conical Fluidized-bed Combustor Firing Thai Rice Husk.|
|2009 :||Rachadaporn Kaewklum. Hydrodynamics and Biomass Combustion in Cone-shaped Conventional and Swirling Fluidized Beds.|
|2013 :||Porametr Arromdee. A Study on (co-)firing of some Unconventional Biomass Fuels in a Conical Fluidized-Bed Combustor.|
|2016 :||Pichet Ninduangdee. Study on Methods for Minimizing Gaseous Emissions and Preventing Bed Agglomeration during Fluidized-Bed Combustion of Oil Palm Residues.|